Construction of a new one-dimensional Hg(II) coordination polymer [Hg4(Chbz)4(4,4′-Bipy)2(NO3)4 · H2O]n involving in situ chlorobenzene synthesis

A new 1D Hg(II) coordination polymer, [Hg4(Chbz)4(4,4′-Bipy)2(NO3)4 · H2O]n (I) (Chbz = 2-chlorophenyl, 4,4′-Bipy = 4,4′-bipyridine), has been synthesized by the in situ synthesis of 2-chlorophenyl from the reaction of 2-chlorobenzoic acid, 4,4′-Bipy and mercury salt under hydrothermal conditions and characterized by elemental analysis, IR, TGA and single-crystal X-ray diffraction. Complex I exhibits an interesting 1D infinite zigzag polymeric chain along the x axis. The photoluminescent measurements reveal that complex I exhibits fluorescent emission in the solid state at room temperature.